Datasheet

LT3573
19
3573fd
For more information www.linear.com/LT3573
TYPICAL APPLICATIONS
V
OUT
+
5V, 700mA
V
OUT
–
D1
C5
47
µF
2.6µH
T1: PULSE PA2454NL
OR WÜRTH ELEKTRONIK 750370047
D1: B340A
D3: PMEG6010
C5: MURATA, GRM32ER71A476K
SHDN/UVLO
TC
SS
SW
VC GND BIAS
LT3573
3573 TA04
R6
28.7k
R5
10k
V
IN
12V TO
24V
(*30V)
V
IN
3:1:1
R1
499k
R2
71.5k
C1
10
µF
T1
24
µH
R4
6.04k
R3
80.6k
C3
1000pF
C4
4.7µF
C2
10nF
R7
45.3k
*OPTIONAL THIRD
WINDING FOR
30V OPERATION
D2
L1C
2.6
µH
R8
2k
D3
C6
0.22
µF
TEST
R
ILIM
R
FB
R
REF
5V Isolated Flyback Converter
Efficiency
I
OUT
(mA)
0
EFFICIENCY (%)
400 800
200
600 1000 1200 1400
3573 TA04b
60
70
80
50
40
10
0
30
90
20
V
IN
= 12V
V
IN
= 24V